From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E121DC3B189 for ; Thu, 13 Feb 2020 15:58:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AAD24217F4 for ; Thu, 13 Feb 2020 15:58:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581609523; bh=ZYqFd2UMqZljpxCmE2ZW4VaxsnEOsTXis5PLPV4k+ww=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eon1VZqi5cOHQ1Q34GxC3/ZhFTzrYdlW+DtlHSa/eW5SIxdT5J2EVkyB9kqI4tfAV hB95FFi4YBcsfKpXbJMhGx11wQ4FjMYZK1bTkarD96GvW3Okc51aNahDs87s8wPrgC hCMKD22yYl7Nn590QJxZIDcPUloy2w5SOxyy/HUk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728915AbgBMPZG (ORCPT ); Thu, 13 Feb 2020 10:25:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:35196 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727857AbgBMPXh (ORCPT ); Thu, 13 Feb 2020 10:23:37 -0500 Received: from localhost (unknown [104.132.1.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E78E8246B8; Thu, 13 Feb 2020 15:23:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607417; bh=ZYqFd2UMqZljpxCmE2ZW4VaxsnEOsTXis5PLPV4k+ww=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lY0XwyYsaJUToaDC/t+ceYj2TesirK7W7KXkbzXRQhG9xknvAHTXmrRs0Mwts+wbd g4B+N7gWmMC+UE93ZaVnx7qz5QzghBE/LmcDtVUtOgXvUUOtE8EhRMEAo4h3hsaViF 0NgnKTZa1I2bHas2LYiywYvoqEGfQi580mRqwLE8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Gustavo A. R. Silva" , Dmitry Vyukov , Andrew Morton , Linus Torvalds Subject: [PATCH 4.9 024/116] lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more() Date: Thu, 13 Feb 2020 07:19:28 -0800 Message-Id: <20200213151852.240664549@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151842.259660170@linuxfoundation.org> References: <20200213151842.259660170@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gustavo A. R. Silva commit 3e21d9a501bf99aee2e5835d7f34d8c823f115b5 upstream. In case memory resources for _ptr2_ were allocated, release them before return. Notice that in case _ptr1_ happens to be NULL, krealloc() behaves exactly like kmalloc(). Addresses-Coverity-ID: 1490594 ("Resource leak") Link: http://lkml.kernel.org/r/20200123160115.GA4202@embeddedor Fixes: 3f15801cdc23 ("lib: add kasan test module") Signed-off-by: Gustavo A. R. Silva Reviewed-by: Dmitry Vyukov Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- lib/test_kasan.c | 1 + 1 file changed, 1 insertion(+) --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -124,6 +124,7 @@ static noinline void __init kmalloc_oob_ if (!ptr1 || !ptr2) { pr_err("Allocation failed\n"); kfree(ptr1); + kfree(ptr2); return; }